Without having seen the previous episodes this animation was a great experience. From the first scene I just leaned back in my chair and settled in, it was like watching a feature film.
The character animation was very powerful in its simplicity, and the pacing in your story telling was perfect. What really blows me away are your amazing backgrounds. You manage to create a world that feels vibrantly alive and utterly convincing - undoubtly the one thing that I will remember best from your animation.
It was also nice to see how you used the rain as extra impact in the story (and how you got away with using rain for so long without it becoming tedious). Also, your use of music gave an extra edge to the whole thing - I actually believe dialogue would have been a let down.
All in all I find this flash to be one of those gems that makes me return to Newgrounds. I am off to watch the other episodes.